None of the 16,892 votes filed at Iowa State University in Ames will count toward the Republican nomination, but the straw poll is likely to separate the top contenders for the nomination from candidates unable to muster the organization or the passion to make a final charge.

Mr. Pawlenty received 2,293 votes after pouring money and time into organizing for the contest.

Rick Santorum was fourth followed by Herman Cain. Texas Gov. Rick Perry, who just announced his candidacy this afternoon received 718 write-in votes (3.6%) and finish ahead of former Massachusetts Gov. Mitt Romney and former House Speaker Newt Gingrich.